Microsoft is giving Windows 7 and 8 users little choice but to upgrade to Windows 10

Windows 7 and 8 users are seeing a new prompt to upgrade to Windows 10 that includes just two options: "Upgrade now" or "Upgrade tonight."

The message, spotted by InfoWorld, tells the user that Windows 10 is "free for a limited time" before displaying two big buttons. There is no option to permanently postpone the upgrade process beyond a small red cross in the top right corner.

The company has been pushing users to upgrade to Windows 10 for some time now, but the no-way-out pop-up window is a new development.

Microsoft has been forced to reassure users about other features within Windows 10, such as the operating system's constant connectivity to the cloud. The company has released software updates to fix these issues.